Users Manual

4. Pin layout
TOP view
5.Pin functions
No Pin Name Type Description
1GND GND GND
2 ANT Analog RF singal
3GND GND GND
4 IO1 Digital I/O General input/output
5VBAT PWR Power,3.3Vmaxpower
6VBAT PWR Power,3.3Vmaxpower
7 IO2 Digital I/O General input/output
8 BT_RXD Digital I UART RX
9 BT_TXD Digital O UART TX
10 IO3 Digital I/O General input/output
11 BT_SWCLK NC No connected
12 BT_SWS Digital I/O
Single wire master, for downloading fireware